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contributor authorPrata, A. J.
date accessioned2017-06-09T14:29:13Z
date available2017-06-09T14:29:13Z
date copyright1989/08/01
date issued1988
identifier issn0022-4928
identifier otherams-20158.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4156355
description abstractObservations from the Nimbus?6 Pressure Modulator Radiometer (PMR) are presented showing evidence of a westward traveling wave of period 5 to 6 days. The wave is observed throughout the 20 month time span of the dataset. The amplitude ranges from 0.5 K at 45 km altitude to about 1.0 K at 85 km. The horizontal structure resembles that of the gravest symmetric wavenumber 1 free Rossby wave and the vertical structure is similar to that of a Lamb wave. There is no evidence of a vertically trapped wave in the summer mesosphere, although some asymmetry is noticeable. The PMR data have been supplemented by using data from the Nimbus- 5 Selective Chopper Radiometer (SCR) to investigate vertical structure and seasonal modulation of wave period. The results show that the wave amplitude grows with height but decreases at 62 km. The period is closer to 6 days in the spring and autumn and about 5.2 days in winter and summer.
publisherAmerican Meteorological Society
titleObservations of the 5–Day Wave in the Stratosphere and Mesosphere
typeJournal Paper
journal volume46
journal issue15
journal titleJournal of the Atmospheric Sciences
identifier doi10.1175/1520-0469(1989)046<2473:OOTWIT>2.0.CO;2
journal fristpage2473
journal lastpage2477
treeJournal of the Atmospheric Sciences:;1988:;Volume( 046 ):;issue: 015
contenttypeFulltext


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